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2 118 636

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C1

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IPC

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Application

96120800/04, 1996-10-18

(22)

Actual filing date

1996-10-18

(45)

Published

1998-09-10

(72)

Inventor

Kovalev O.S.Afanas'Ev N.D.Shmeleva L.Ja.Kurnosov V.N.Soloshchanskij O.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa

ACETIC ACID ISOLATION PROCESS Russian patent published in 1998 - IPC

Abstract RU 2118636 C1

FIELD: industrial organic synthesis. SUBSTANCE: acetic acid is distilled off from ammonia-acetate waste obtained after separation of powdered copper from copper-ammonia solution at residual pressure 0.1-0.3 atm in presence of alkali component in amount 0.415-0.75 mol/l. EFFECT: increased completeness of acetic acid isolation and content of impurities in acetic acid distillate reduced virtually to zero. 1 tbl

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RU 2 118 636 C1

Authors

Kovalev O.S.

Afanas'Ev N.D.

Shmeleva L.Ja.

Kurnosov V.N.

Soloshchanskij O.V.

Dates

1998-09-10—Published

1996-10-18—Filed

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